HP-UX 11i Version 2 Installation and Update Guide, March 2004

Choosing a Migration Path
Migrating from Previous HP-UX Releases
Chapter 2 37
Update Path Notes
If you are planning to update to a higher level server operating
environment from a current HP-UX 11i v1.6 server operating
environment (for example, HP-UX 11i v1.6 Foundation OE (base OE)
to HP-UX 11i v2 Enterprise OE), you must proceed using the
following steps:
1. Update to HP-UX 11i v2 Foundation OE
2. Update to the desired premium OE (in this case, the Enterprise
OE)
You cannot downgrade to a lower level operating environment (for
example from Enterprise OE (EOE) to Foundation OE (FOE), or
Technical Computing Operating Environment (TCOE) to Minimal
Technical Operating Environment (MTOE)
You cannot update between server operating environments (FOE,
EOE, and MCOE) and technical operating environments (MTOE,
and TCOE)